I had ,,backup and sync’’ for Google working OKish for me for accessing my Google Drive files in the past. I’ve got an upgrade called ,,Google Drive’’ which too

I had ,,backup and sync’’ for Google working OKish for me for accessing my Google Drive files in the past. I’ve got an upgrade called ,,Google Drive’’ which took down backup and sync, and then installed the software. After that it told me that it wants to sync everything on my disk, and there’s not enough space on my Google Drive to do it, and I can’t use backup and sync anymore. I could pay for more storage for Google, but I don’t want it to have all my data with all the problems that I see here, and I honestly don’t know what to do now to sync with my mobile, as Google Drive was great for me in the past. I see some people suggesting E2E solutions, but I’m not sure how great is the mobile experience for those, and how well they integrate with Google docs, which I love to use.